Key Biscayne vs Olympia Heights

A side-by-side comparison of Key Biscayne and Olympia Heights: population, income, housing, and more.

Key Biscayne and Olympia Heights are places in Florida. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.

Key Biscayne has the higher population (14,560 vs 13,179 in Olympia Heights). Key Biscayne has the higher median household income ($172,604 vs $107,381 in Olympia Heights). Key Biscayne has the higher median home value ($1,238,700 vs $497,300 in Olympia Heights).

Population, income & housing

	Key Biscayne	Olympia Heights
Population	14,560	13,179
Median age	43.1 yrs	46.9 yrs
Median household income	$172,604	$107,381
Median home value	$1,238,700	$497,300
Median gross rent	$3,501	$2,341
Housing units	7,496	4,214
Homeownership rate	69.3%	85.4%
Bachelor's degree or higher	74.4%	32.9%
Unemployment rate	3.4%	1.9%

Trends (ACS 5-year, 2019–2023)

	Key Biscayne	Olympia Heights
Population	12,915 → 14,560 (+12.7%)	13,958 → 13,179 (-5.6%)
Median household income	$151,310 → $172,604 (+14.1%)	$61,776 → $107,381 (+73.8%)
Median home value	$1,211,000 → $1,238,700 (+2.3%)	$348,500 → $497,300 (+42.7%)
Median gross rent	$2,548 → $3,501 (+37.4%)	$1,702 → $2,341 (+37.5%)

Key Biscayne

Population

12,91514,560

Median household income

$151,310$172,604

Median home value

$1,211,000$1,238,700

Median gross rent

$2,548$3,501

Olympia Heights

Population

13,95813,179

Median household income

$61,776$107,381

Median home value

$348,500$497,300

Median gross rent

$1,702$2,341

Age & race/ethnicity

Age distribution (share)

	Key Biscayne	Olympia Heights
Under 5	5.3%	5.1%
5 to 17	25.5%	11.5%
18 to 24	4.5%	6.7%
25 to 34	5.9%	13.6%
35 to 44	11.0%	10.7%
45 to 54	20.3%	15.2%
55 to 64	11.0%	16.0%
65 to 74	8.8%	10.1%
75 and over	7.7%	11.0%

Race & ethnicity (share)

	Key Biscayne	Olympia Heights
White (non-Hispanic)	23.2%	11.6%
Black or African American	0.5%	0.4%
American Indian & Alaska Native	0.0%	0.0%
Asian	0.2%	0.4%
Native Hawaiian & Pacific Islander	0.1%	0.0%
Some other race	0.0%	0.0%
Two or more races	3.2%	0.0%
Hispanic or Latino	72.8%	87.6%

Educational attainment (age 25+)

Share of adults 25+

	Key Biscayne	Olympia Heights
No high school diploma	3.6%	15.3%
High school graduate	8.0%	29.6%
Some college or associate's	13.9%	22.1%
Bachelor's degree	34.1%	21.3%
Graduate or professional degree	40.3%	11.6%

Commute to work

How workers get to work (share)

	Key Biscayne	Olympia Heights
Drove alone	55.2%	69.2%
Carpooled	4.6%	5.5%
Public transit	2.2%	1.6%
Walked	2.2%	0.5%
Bicycle	0.6%	0.0%
Worked from home	31.9%	22.7%
Other means	3.4%	0.5%

Housing

Units in structure (share)

	Key Biscayne	Olympia Heights
1-unit, detached	18.5%	91.1%
1-unit, attached	3.2%	6.3%
2 to 4 units	0.2%	2.0%
5 to 19 units	3.4%	0.0%
20 or more units	74.5%	0.5%
Mobile home & other	0.2%	0.0%

Poverty & households

	Key Biscayne	Olympia Heights
Poverty rate	7.7%	12.4%
Average household size	2.92	3.16
Mean commute (minutes)	24	30
Median year structure built	1978	1958